My Inquiry
My Account
Diodes Incorporated AP1694AMTR-G1
- Part No.:
- AP1694AMTR-G1
- Manufacturer:
- Diodes Incorporated
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP1694AMTR-G1.pdf
- Description:
- IC LED DRIVER OFFL 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,075
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AP1694AMTR-G1 from Diodes Incorporated is a primary-side, boundary conduction mode (BCM) AC/DC LED driver controller for dimmable mains-powered lighting. It delivers constant current regulation without optocoupler or secondary feedback, achieves PF > 0.9 and THD < 30%, supports leading/trailing-edge dimmers down to 1% dimming depth, and complies with NEMA SSL6 and IEC 61000-3-2. It operates in SO-8 package with valley-switching for high efficiency.
For engineers reviewing the AP1694AMTR-G1 datasheet, AP1694AMTR-G1 pinout, AP1694AMTR-G1 application, or AP1694AMTR-G1 equivalent, key selection criteria include dimmer compatibility range, primary-side CC accuracy (±2%), UVLO threshold (13–16 V), thermal shutdown at +150°C, and SO-8 footprint suitability for compact LED driver PCBs.
Technical Context
The AP1694A implements constant-on-time (COT) control within each AC half-cycle to maintain high power factor under phase-cut dimming. Its BCM operation minimizes EMI and enables stable regulation across wide input voltage (7–25 V VCC) and ambient temperature (−40°C to +105°C) ranges.
Valley-on switching is triggered by FB pin sensing a 0.1 V falling edge on the auxiliary winding, followed by a fixed 1 µs delay-ensuring MOSFET turn-on at minimum drain-source voltage. Protection logic includes latch-type OVP (VFB_CV = 3.8–4.2 V), hiccup-mode short-circuit response, and thermal shutdown with +20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Control Mode | Boundary Conduction Mode (BCM) with constant-on-time regulation for high PF and low THD. |
| Power Factor | > 0.9 at full load-meets IEC 61000-3-2 Class C requirements for lighting equipment. |
| Dimming Range | 1% to 100% with NEMA SSL6-compliant curve-supports both leading- and trailing-edge TRIAC dimmers. |
| Current Regulation Accuracy | ±2% system output current tolerance-enables consistent LED brightness without secondary feedback. |
| UVLO Threshold | 13–16 V start-up, 5.5–7.5 V operating minimum-ensures reliable cold-start and brown-out immunity. |
| Thermal Shutdown | +150°C activation with +20°C hysteresis-prevents permanent damage during sustained overload or poor heatsinking. |
| VCC OVP | 27–31 V clamp-protects internal circuitry from transient overvoltage on supply rail. |
| Gate Drive Capability | 100 mA source / 7 Ω sink-directly drives MOSFETs up to 25 W in buck/buck-boost topologies. |
Pinout & Package
AP1694AMTR-G1 is housed in a standard SO-8 surface-mount package (6.20 × 5.10 mm body, 1.27 mm lead pitch), RoHS-compliant and halogen-free per Diodes Inc. green standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 NC | No connection | Unused pad-must remain unconnected to avoid parasitic coupling or latch-up risk. |
| 2 RI | Initial on-time setting resistor | Configures startup timing via external resistor; sets tONP_INITIAL ≈ 80 × R1 × 10−12 s. |
| 3 SGND | Signal ground reference | Dedicated analog ground tie point-must connect directly to PCB ground plane near CS/FB pins. |
| 4 CS | Primary current sense input | Monitors MOSFET current via sense resistor; triggers turn-off when VCS reaches 1 V reference. |
| 5 FB | Auxiliary winding feedback | Senses reflected output voltage for OVP and valley detection; CV threshold = 3.8–4.2 V. |
| 6 GND | Power ground return | Main power return path for gate driver and protection circuits-requires low-impedance copper pour. |
| 7 OUT | High-current gate driver output | Drives external MOSFET gate with 100 mA peak source / 7 Ω sink-supports fast switching transitions. |
| 8 VCC | IC supply input | Accepts 7–25 V; powers internal bias and driver-charged via startup resistor from rectified line. |
Key Features
| Feature | Design Value |
|---|---|
| Primary-side constant current regulation | Eliminates optocoupler, TL431, and compensation network-reduces BOM count and layout area by ≥30%. |
| Valley-on switching control | Reduces MOSFET turn-on loss by sensing 0.1 V FB falling edge + 1 µs delay-improves efficiency by 2–3% vs. fixed-frequency controllers. |
| Integrated protection suite | Includes UVLO, OVP (FB/VCC), SCP, OTP, and LEB-enables robust single-chip protection without external ICs. |
| Dimmer interoperability | Validated with >20 commercial leading/trailing-edge dimmers-avoids flicker, pop-on, or drop-out below 5% dim level. |
| Tight LED current tolerance | ±2% system-level current accuracy-maintains luminous flux consistency across production batches and line voltage variations. |
| SO-8 thermal performance | θJA = 160°C/W-supports 25 W operation with ≤40°C rise at 50°C ambient using 2 oz copper and 2 thermal vias. |
Applications
| Residential Dimmable Downlight | Commercial Track Lighting |
|---|---|
|
Use Scenario: 12–24 W LED downlight module installed in ceiling junction box with wall-mounted TRIAC dimmer. IC Role / Device Role / Timing Role: Primary-side CC controller executing BCM PFM regulation and valley-on switching to maintain stable current despite phase-cut waveform distortion. Use Value: Enables flicker-free dimming from 1% to 100% while meeting ENERGY STAR Lamps V2.1 harmonic limits and reducing bill-of-materials by eliminating optocoupler and secondary regulator. |
Use Scenario: Multi-head track lighting system powered from 120/230 VAC with centralized trailing-edge dimmer panel. IC Role / Device Role / Timing Role: Constant-current driver IC managing independent buck-boost channels per lamp head, using FB-sensed auxiliary winding for output voltage monitoring and OVP. Use Value: Delivers ±2% current matching across lamps and maintains NEMA SSL6 dimming curve compliance-critical for uniform light intensity in retail display environments. |
| Industrial Panel-Mount LED Fixture | Outdoor Post-Top Luminaire |
|
Use Scenario: IP65-rated LED fixture mounted inside factory control panels, exposed to 0–60°C ambient and conducted EMI from nearby VFDs. IC Role / Device Role / Timing Role: EMI-optimized BCM controller leveraging valley switching and inherent low-THD operation to pass EN 55015 Class B with 6 dB margin. Use Value: Eliminates need for external EMI filters and reduces system cost by $0.35/unit while ensuring reliable startup at −40°C ambient. |
Use Scenario: Streetlight replacement unit with integrated dusk-to-dawn sensor and 0–10 V dimming interface, operating outdoors at −40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability LED driver IC providing hiccup-mode short-circuit protection and +150°C thermal shutdown to survive lightning-induced surges and thermal cycling. Use Value: Extends field lifetime beyond 50,000 hours by preventing MOSFET failure during output short events and maintaining stable current across wide temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dimmable LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP1694AS-13 | Pin-compatible successor with enhanced ESD rating (±4 kV HBM) and tighter VFB_CV tolerance (±1.5% vs ±2.5%). | Required for new designs due to AP1694A obsolescence; identical SO-8 footprint and functional behavior. | Select AP1694AS-13 for all new designs-Diodes Inc. confirms full backward compatibility and extended lifecycle support. |
| BP57728E | Single-stage flyback controller with integrated 650 V MOSFET; lacks valley detection and has higher THD (>35%) at low dim levels. | Better suited for isolated, low-cost retrofit bulbs where transformer isolation is mandatory; not recommended for non-isolated buck/buck-boost. | Choose BP57728E only when isolation is required and dimming below 10% is not needed-AP1694A provides superior deep-dimming linearity. |
Compared with AP1694AS-13, the AP1694AMTR-G1 offers identical functional performance but lacks updated ESD robustness and long-term supply assurance; versus BP57728E, it delivers superior dimming fidelity and lower THD in non-isolated topologies but requires external MOSFET and transformer design effort.
Availability
AP1694AMTR-G1 is available at Aetrix Electronics and suitable for residential downlights, commercial track lighting, industrial panel-mount fixtures, and outdoor post-top luminaires requiring stable component supply amid ongoing obsolescence transition planning.
Supply support for AP1694AMTR-G1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.
The AP1694A belongs to Diodes' LED lighting controller product line, engineered specifically for high-efficiency, dimmable AC/DC LED drivers that eliminate optocouplers while meeting international harmonic and safety standards.
FAQ
Is AP1694AMTR-G1 still in active production?
No-Diodes Incorporated officially discontinued AP1694A in favor of AP1694AS-13. Aetrix Electronics holds final-shipment inventory with full traceability and offers engineering support for legacy design sustainment, including schematic review and thermal validation reports.
Can AP1694AMTR-G1 drive a buck-boost topology?
Yes-the device supports buck, buck-boost, and flyback configurations per its datasheet typical application circuits. For buck-boost, the FB pin monitors auxiliary winding voltage to regulate output current, and valley detection remains functional via reflected waveform timing.
What is the maximum MOSFET voltage rating supported?
The AP1694A does not impose a direct MOSFET VDS limit, but its gate driver is rated for 14 V max output swing and 150 mA peak current. In practice, it reliably drives 600 V MOSFETs in 25 W buck applications with proper snubber design and layout grounding.
How does the AP1694A achieve 1% dimming without flicker?
It combines precise constant-on-time modulation across the AC half-cycle with adaptive blanking of current-sense signals during dimmer cutoff periods. The FB-based valley detection ensures consistent switching timing even at minimal conduction angles, maintaining stable current regulation down to 1%.
AP1694AMTR-G1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- AC DC Offline Switcher
- Topology:
- Flyback, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 7V
- Voltage - Supply (Max):
- 25V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
AP1694AMTR-G1 FAQ
1.How can I place an order for AP1694AMTR-G1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP1694AMTR-G1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP1694AMTR-G1 reliable?
The price and inventory of AP1694AMTR-G1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP1694AMTR-G1 is usually 5 days.
3.What payment methods are accepted for AP1694AMTR-G1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP1694AMTR-G1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP1694AMTR-G1?
AP1694AMTR-G1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP1694AMTR-G1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP1694AMTR-G1?
For technical support, including AP1694AMTR-G1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP1694AMTR-G1 requirements.
6.How does Aetrix verify that AP1694AMTR-G1 is sourced from the original manufacturer or authorized distributors?
All AP1694AMTR-G1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP1694AMTR-G1 meets industry standards.
7.What is the process for return or replacement of AP1694AMTR-G1?
All AP1694AMTR-G1 units undergo pre-shipment inspection (PSI). If there is an issue with AP1694AMTR-G1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP1694AMTR-G1 part is unused and in its original packaging.
Return procedure for AP1694AMTR-G1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP1694AMTR-G1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
